So I scored one of these recently. I really like it, but had a bunch of failure to feeds with FMJ at the range. Didn't mater which type of mag I used (Springfield and Wilson 47D). It didn't happen every mag, but it happened a lot.
It also has the stupid two piece screw together guide rod. I found after shooting a mag the rod would loosen so I kept having to tighten it up during my range trip which was a PITA.
I also was told most of the parts are MIM so I plan to slowly upgrade items to tool steel.
First up, i'm grabbing the EGW 4" guide rod kit:
I was also thinking while i'm at it to upgrade the extractor. Would this be the one i'm looking for?
From what I read I believe this is a Series 70 1911.
I'm hoping with these two parts my FTFs will disappear. I read another forum where a 4" 1911 was having this failure and changing out to the EGW kit smoothed up the gun and his issue disappeared.